ClimateMaster Tranquility 30 Digital TE Series Installation, Operation & Maintenance Instructions Manual page 30

Tranquility 30 Digital ( TE) Series IOM - 60Hz HFC-410A
®
R e v . : O c t o b e r 5 , 2 0 2 1
Hot Water Generator
Installation
The HWG is controlled by two sensors and the DXM2 micro-
processor control. One sensor is located on the compressor
discharge line to sense the discharge refrigerant tempera-
ture. The other sensor is located on the HWG heat exchang-
er's "Water In" line to sense the potable water temperature.
⚠
WARNING! UNDER NO CIRCUMSTANCES SHOULD THE
SENSORS BE DISCONNECTED OR REMOVED. FULL
LOAD CONDITIONS CAN DRIVE HOT WATER TANK
TEMPERATURES FAR ABOVE SAFE TEMPERATURE
LEVELS IF SENSORS DISCONNECTED OR REMOVED.
The DXM2 microprocessor control monitors the refrigerant
and water temperatures to determine when to operate
the HWG. The HWG will operate any time the refrigerant
temperature is sufficiently above the water temperature. Once
the HWG has satisfied the water heating demand during a
heat pump run cycle, the controller will cycle the pump at
regular Intervals to determine if an additional HWG cycle can
be utilized.
When the control is powered and the HWG pump output is
active for water temperature sampling or HWG operation,
the DXM2 status LED will slowly flash (On 1 second, Off 1
second).
If the control has detected a HWG fault, the DXM2 status LED
will flash a numeric fault code as follows:
High Water Temperature (>160ºF)
Hot Water Sensor Fault
Compressor Discharge Sensor Fault
Fault code flashes have a duration of 0.3 seconds with
a 10 second pause between fault codes. For example, a
"Compressor Discharge sensor fault" will be six flashes 0.3
seconds long, then a 10 second pause, then six flashes
again, etc.
⚠
WARNING! USING A 150°F SETPOINT ON THE
HWG WILL RESULT IN WATER TEMPERATURES
SUFFICIENT TO CAUSE SEVERE PHYSICAL INJURY
IN THE FORM OF SCALDING OR BURNS, EVEN WHEN
THE HOT WATER TANK TEMPERATURE SETTING
IS VISIBLY SET BELOW 150°F. THE 150°F HWG
SETPOINT MUST ONLY BE USED ON SYSTEMS THAT
EMPLOY AN APPROVED ANTI-SCALD VALVE (PART
NUMBER AVAS4) AT THE HOT WATER STORAGE
TANK WITH SUCH VALVE PROPERLY SET TO
CONTROL WATER TEMPERATURES DISTRIBUTED
TO ALL HOT WATER OUTLETS AT A TEMPERATURE
LEVEL THAT PREVENTS SCALDING OR BURNS!
30
⚠
WARNING!
5 flashes
6 flashes
6 flashes
⚠
WARNING!
G e o t h e r m a l H e a t i n g a n d C o o l i n g
Figure 23: Anti-Scald Valve Piping Connections
ANTI-SCALD
VALVE PIPING
CONNECTIONS
ANTI-SCALD
VALVE
HOT WATER
M
TO HOUSE
WATER HEATER
Hot Water Generator settings are determined by DIP switches
3-2, 3-3, and 3-4.
DIP 3-2 controls the HWG Test Mode. It provides for forced
operation of the HWG output, activating the HWG pump for
up to five minutes. ON = HWG test mode, OFF = normal
HWG operation. The control will revert to standard operation
after five minutes regardless of switch position.
DIP 3-3 determines HWG set point temperature. It provides
for selection of the HWG operating set point. ON = 150°F
(66°C), OFF = 125°F (52°C).
DIP 3-4 is for the HWG status. It provides HWG operation
C
P1
control. ON = HWG mode enabled, OFF = HWG mode
R
Y1
disabled. Units are shipped from the factory with this switch in
Y2
W
the OFF position.
O
G
R
C
Figure 24: Hot Water Generator Settings
AL1
P2
AL2
R
NSB JW1
Alarm
Relay
C
ESD
7"
OVR
H
A
Hot Water
Generator
P3
Settings
R
NO1
NC1
Acc1
COM1 Relay
NO2
NC2
COM2
Acc2
Relay
R
COLD WATER
SUPPLY
CHECK VALVE
C
H
P4
(240Vac)
Gnd B- A+ 24V (240Vac)
N.C.
N.O.
P5
N.O.
Com
Fan Enable Fan Speed
Test
P12
Micro
1
U1
Fault Status
Off On
JW3
Off On
S3
12
Off On
RV
Relay
CCH 1
Relay
S2
A0-1 A0-2
4
S1
Comp
Relay
CCG
P11 P10 P9
Gnd T1 T2 T2 T3 T3 T4 T4 T5 T5 T6 T6
AO2
P8
12V
IN
OUT
Gnd
NC
HP
HP
LP
LP
LT1
LT1
LT2
LT2
RV
RV
CO
CO
P7
24Vdc
EH1
EH2
P6
CC